SU1026719A1 - Sprinkling machine carriage drive - Google Patents

Abstract

DRIVE TROLLEY DRIVE, containing a hydraulic motor with a distributor, kinematically connected with the axis of the wheels, and with the fact that, in order to reduce the operating costs of moving the machine from one position to another / main engine in the form of a spring with an adjustable brake and a winding mechanism from a hydraulic cylinder connected through a distributor to the pressure pipe of the machine.

Description

f f 1

(ABOUT

with

to

l

CD The invention relates to agriculture, in particular to irrigation technology, and can be used in self-propelled sprinkler and irrigation machines of positional action, for example, on wheeled transfer sprinkler lines. The drive of the self-propelled car of the sprinkler is known, which includes a hydraulic cylinder with a distributor and various brakes. Also known is the hydraulic drive of the cart of the multi-support sprinkler, which includes an engine in the form of a hydraulic cylinder with a distributor and a lever reverse mechanism, kinematically connected with the axis of the wheels 2. The drawbacks of the hydraulic drive are the high operating costs associated with energy losses during idle strokes of the cylinder and the large laboriousness of shifting the levers of the reverse mechanism. The purpose of the invention is to reduce the operating costs of moving cars from one position to another. The goal is achieved by the fact that in the drive of the cart of the sprinkling machines the hydraulic motor is made in the form of a spring drum with an adjustable brake and mechanism of winding from the hydraulic cylinder connected through a distributor to the pressure pipe of the machine. In addition, to perform the reverse, the drive has an additional spring drum adjustable brake, with the direction of rotation opposite the first drum. The drawing shows a schematic diagram of a drive of a dozhdevalnye cart. The actuator includes a distributor 1 connected by two channels with a hydraulic cylinder 2 of two-way action, ratchet mechanism 3, hollow drums 4 and 5 with flat coil springs b and 7, gears 8-11, shafts 12-16, brakes 17 and 18. Gears 8 and 9 they are connected to shafts 14 and 15 through clutches 19 and 20, allowing the torque to be transmitted in only one direction. The winding mechanism 3 consists of ratchet wheels 21-24, spring loaded dogs 25-28 (the springs are conventionally not shown), levers 29 and 30, axles 31.. Ratchet wheels 21 and 22 are rigidly fixed on the shaft 12, and ratchet wheels 23 and 24 — on shaft 13. Shafts 12 and 13 are not connected to each other. The pawls 26 and 28 prevent the spontaneous unwinding of the twisted shafts 12 and 13. The lever 29 sits loosely on the shaft 12, and the lever 30 sits on the shaft 13. The dog 25 and 27, the levers 29 and 30 and the hydraulic cylinder rod 32 are connected by an axis 31. The spring with the inner end is fixed on the shaft 12, and the outer end - on the drum 4. In the same way, the spring 7 is attached to the shaft 13 and the drum 5. The drums 4 and 5 are clamped by the brakes 17 and 18. The distributor 1 includes valves 35 and 36, the rod 37 and lever-to-hook mechanism 38. The stops 33 and 34 are fixed on the rod of the hydraulic cylinder 2, which serve to transfer the trigger mechanism PCA 38 and hence the rod 37 of the connecting valves and various cavities of the hydraulic cylinder to the discharge conduit of the machine (not shown). The operation of the self-propelled trolley drive consists of following. Water under pressure during positional irrigation of the sprinkler goes through distributor 1 to one of the cavities of the hydraulic cylinder 2., for example, at the head. The piston with the rod 33 begins to move to the right and through the axis 31, the pawl 25 and the ratchet wheel 21 rotates the shaft 12. At this time, the spring-loaded 6 is twisted, as it is fixed on the shaft 12 with its inner condom; The barbans 4 and 5 are clamped, the brakes 17 and the stem 32 g and the valve are moved to the extreme right position, and the stop 33 moves the trigger mechanism 38f which in turn quickly switches the rod 37 with the valves 35 and 36 of the switch and they are in the extreme right position. In this case, the left cavity of the hydraulic cylinder 2 is turned off, and the water begins to flow into its right cavity, the piston, moving to the left, rotates the shaft 13 through the pawl 27, the sharp wheel 23, and thus the spring 7 is twisted. At this time the dog 25 and The lever 29 freely slides the ratchet wheel 21 and the shaft 12, which stands still. The ratchet wheel 22 and the pawl 26 are kept from unwinding. As soon as the rod 32 moves to the leftmost position, the trigger mechanism 38 moves the rod 37 with the valves to the leftmost position. The left, hydraulic cylinder cavity is opened, and the right is closed, and the process of tightening the spring 6 is repeated. The whole process of full tightening of the springs takes place while the machine is standing in a position that usually lasts several hours. For

to stop the spring twisting, the pawl 25 and 27 must be disengaged from the ratchet wheels. After the irrigation rate has been dispensed, the machine is disconnected from the irrigation hydrant and the vehicle moves to a new position in the following sequence. Then, the force P of pressing the brakes 17 to the drum 4 is gradually reduced. Clutch 19 transmits this moment to gears 8, 10 and shaft 1 €. The gear 9 at this moment rotates freely on the shaft 15 due to the coupling 20. The shaft 16 simultaneously serves as a conduit in the case of using the drive for trolleys of wheel sprinklers, for example, of the type DKSh-64 Volzhanka. For other sprinkler machines, the torque from the shaft 16 is transmitted directly to the driving wheels of the carriage, and thus the move is made.

When the trolley moves in the opposite direction (reversal), the energy of the spring 7 is used. For this, the drum 4 is clamped with brakes 17, and the brakes 18 are released. The drum 5 begins to rotate and transfers the torque through the shaft 15, the clutch 20, the gears 9 and 11 to the shaft 16. In this case, the shaft 16 rotates in the opposite direction and thus the carriage reverses. Gear 8. rotates freely on the shaft 14. The use of a design with flat spiral springs allows the accumulation of irrigation water during sprinkling and subsequent use of this energy when moving the machine from one position to another, eliminating the use of relatively expensive and complex autonomous sources. energy; the maintenance effort is reduced, and consequently, maintenance costs are reduced. The cost-effectiveness and mobility of the drive are increased by eliminating special devices from the design.

Claims (1)

DRIVING MACHINE TROLLEY DRIVE containing a hydraulic engine with a distributor kinematically connected to the axis of the wheels, characterized in that, in order to reduce operating costs for moving the machine from one position to another, the engine is made in the form of a spring drum with an adjustable a brake and a winding mechanism from a hydraulic cylinder connected through a distributor to the pressure pipe of the machine.